The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 1987
Filed:
Feb. 01, 1985
Joerg Haendle, Erlangen, DE;
Werner Haas, Uttenreuth, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
An x-ray diagnostic installation has a video display system connected to the output of an x-ray image intensifier, the video system including a subtraction stage with a weighting circuit connected to an image memory for suppressing image noise the subtraction stage also having a difference forming element for subtracting image information arising at different times. The output of the difference forming stage is supplied to a threshold circuit and the output of the threshold circuit is read into another image memory picture element-by-picture element. This memory is connected to the weighting circuit such that the output thereof controls the parameters of the weighting circuit picture element-by-picture element. A filter circuit may be interconnected between the output of this memory and the weighting circuit.